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Cheap flights from Colorado to New York from $138

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to New York departing on 9/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Colorado to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
11:59 pm - 7:01 pmDEN  Denver Intl-ISP Islip Long Island
17h 02m1 stop Tampa
Frontier Logo
7:46 pm - 11:07 pmISP  Islip Long Island-DEN Denver Intl
29h 21m1 stop Tampa
$252Frontier
Sat, Aug 29 - Mon, Aug 31
Frontier Logo
11:59 pm - 4:58 pmDEN  Denver Intl-ISP Islip Long Island
14h 59m1 stop Orlando
Frontier Logo
5:43 pm - 7:52 amISP  Islip Long Island-DEN Denver Intl
16h 09m1 stop Orlando
$262Frontier
Tue, Sep 8 - Tue, Sep 15
Frontier Logo
7:12 pm - 4:58 pmDEN  Denver Intl-ISP Islip Long Island
19h 46m1 stop Orlando
Frontier Logo
5:43 pm - 7:37 amISP  Islip Long Island-DEN Denver Intl
15h 54m1 stop Orlando
$262Frontier
Wed, Sep 30 - Sat, Oct 3
Frontier Logo
6:00 am - 7:01 pmDEN  Denver Intl-ISP Islip Long Island
11h 01m1 stop Tampa
Frontier Logo
7:09 pm - 8:07 amISP  Islip Long Island-DEN Denver Intl
14h 58m1 stop Orlando
$264Frontier
Sat, Aug 29 - Mon, Sep 7
Frontier Logo
6:00 am - 7:01 pmDEN  Denver Intl-ISP Islip Long Island
11h 01m1 stop Tampa
Frontier Logo
10:57 am - 11:00 pmISP  Islip Long Island-DEN Denver Intl
14h 03m1 stop Orlando
$264Frontier
Fri, Aug 28 - Mon, Aug 31
Frontier Logo
11:59 pm - 9:53 amDEN  Denver Intl-ISP Islip Long Island
7h 54m1 stop Orlando
Frontier Logo
7:09 pm - 7:33 amISP  Islip Long Island-DEN Denver Intl
14h 24m1 stop Orlando
$264Frontier
Tue, Sep 1 - Sat, Sep 5
Frontier Logo
6:00 am - 7:01 pmDEN  Denver Intl-ISP Islip Long Island
11h 01m1 stop Tampa
Frontier Logo
7:09 pm - 7:33 amISP  Islip Long Island-DEN Denver Intl
14h 24m1 stop Orlando
$264Frontier
Fri, Aug 28 - Sat, Aug 29
Frontier Logo
6:00 am - 7:01 pmDEN  Denver Intl-ISP Islip Long Island
11h 01m1 stop Tampa
Frontier Logo
10:57 am - 3:18 pmISP  Islip Long Island-DEN Denver Intl
30h 21m1 stop Orlando
$264Frontier
Fri, Aug 28 - Sat, Sep 5
Southwest Logo
5:00 am - 12:05 pmDEN  Denver Intl-ISP Islip Long Island
5h 05m1 stop Baltimore/Washington
Southwest Logo
12:30 pm - 5:35 pmISP  Islip Long Island-DEN Denver Intl
7h 05m1 stop Baltimore/Washington
$391Southwest
Sat, Dec 5 - Tue, Dec 8
Southwest Logo
5:00 am - 2:55 pmDEN  Denver Intl-ISP Islip Long Island
7h 55m1 stop Baltimore/Washington
Southwest Logo
12:30 pm - 7:30 pmISP  Islip Long Island-DEN Denver Intl
9h 00m2 stops Baltimore/Washington Atlanta Hartsfield-Jackson
$396Southwest
Sat, Dec 5 - Tue, Dec 8

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Frontier flights from Colorado to Islip, New York

Our best Frontier deals on Colorado to Islip, New York flight tickets
Frontier
Aug 29
DEN11:59 pmDenver Intl
17h 02m
1 stop
ISP7:01 pmIslip Long Island
Aug 31
ISP7:46 pmIslip Long Island
29h 21m
1 stop
DEN11:07 pmDenver Intl
$252
Frontier
Sep 8
DEN11:59 pmDenver Intl
14h 59m
1 stop
ISP4:58 pmIslip Long Island
Sep 15
ISP5:43 pmIslip Long Island
16h 09m
1 stop
DEN7:52 amDenver Intl
$262
Frontier
Aug 28
DEN6:00 amDenver Intl
11h 01m
1 stop
ISP7:01 pmIslip Long Island
Aug 31
ISP10:57 amIslip Long Island
14h 03m
1 stop
DEN11:00 pmDenver Intl
$264

Southwest flights from Colorado to Islip, New York

Our best Southwest deals on Colorado to Islip, New York flight tickets
Southwest
Dec 5
DEN5:00 amDenver Intl
5h 05m
1 stop
ISP12:05 pmIslip Long Island
Dec 8
ISP12:30 pmIslip Long Island
7h 05m
1 stop
DEN5:35 pmDenver Intl
$391
Southwest
Dec 5
DEN5:00 amDenver Intl
7h 55m
1 stop
ISP2:55 pmIslip Long Island
Dec 8
ISP12:30 pmIslip Long Island
9h 00m
2 stops
DEN7:30 pmDenver Intl
$396
Southwest
Dec 5
DEN5:50 amDenver Intl
7h 05m
2 stops
ISP2:55 pmIslip Long Island
Dec 8
ISP12:30 pmIslip Long Island
8h 55m
2 stops
DEN7:25 pmDenver Intl
$401

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Islip, New York that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 10, 2026.
Use the filters below to find and compare flights from Colorado to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Sat 8/29

11:59 pm-7:01 pm

1 stop17h 02m

Islip Long Island

Mon 8/31

7:46 pm-11:07 pm

1 stop29h 21m

$252

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Tue 9/8

11:59 pm-4:58 pm

1 stop14h 59m

Islip Long Island

Tue 9/15

5:43 pm-7:52 am

1 stop16h 09m

$262

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Wed 9/30

7:12 pm-4:58 pm

1 stop19h 46m

Islip Long Island

Sat 10/3

5:43 pm-7:37 am

1 stop15h 54m

$262

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Sat 8/29

6:00 am-7:01 pm

1 stop11h 01m

Islip Long Island

Mon 9/7

7:09 pm-8:07 am

1 stop14h 58m

$264

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Fri 8/28

6:00 am-7:01 pm

1 stop11h 01m

Islip Long Island

Mon 8/31

10:57 am-11:00 pm

1 stop14h 03m

$264

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Tue 9/1

11:59 pm-9:53 am

1 stop7h 54m

Islip Long Island

Sat 9/5

7:09 pm-7:33 am

1 stop14h 24m

$264

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Fri 8/28

6:00 am-7:01 pm

1 stop11h 01m

Islip Long Island

Sat 8/29

7:09 pm-7:33 am

1 stop14h 24m

$264

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Fri 8/28

6:00 am-7:01 pm

1 stop11h 01m

Islip Long Island

Sat 9/5

10:57 am-3:18 pm

1 stop30h 21m

$264
Quickest round-trip

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Sat 12/5

5:00 am-12:05 pm

1 stop5h 05m

Islip Long Island

Tue 12/8

12:30 pm-5:35 pm

1 stop7h 05m

$391

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Sat 12/5

5:00 am-2:55 pm

1 stop7h 55m

Islip Long Island

Tue 12/8

12:30 pm-7:30 pm

2 stops9h 00m

$396

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to New York from

How to get the cheapest flight ticket from Colorado to Islip, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Colorado to Islip, New York flights?

You could potentially save up to 6% on your flight if you consider stops on a Colorado to Islip, New York flight.

Cheap Colorado to Islip, New York flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Islip, New York

Fastest flight time

7h 34m

Direct flights

None
The fastest flight from Colorado to Islip, New York takes 7h 34m
There are no direct flights from Colorado to Islip, New York. There are no popular flight routes from Colorado to Islip, New York.
Search flight deals

Frequently asked questions about flying from Colorado to Islip, New York

  • When did momondo last update prices for flights from Colorado to Islip Long Island Airport?

    Prices for flights from Colorado to Islip Long Island Airport are updated daily.

  • How many operators does momondo search for flights from Colorado to Islip Long Island Airport?

  • How old do you have to be to fly from Colorado to Islip Long Island Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The necessary travel and health documents for your Islip Long Island Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Colorado to Islip, New York

Compare and see reviews for airlines that fly from Colorado to Islip, New York with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $379Free CancellationRating
8.0
4,218 reviews
Search Southwest flights

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Montauk
Riverhead
Southampton
Sag Harbor
Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Islip?

It is quick and easy to find Colorado to Islip flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Islip that suits you.

Can I find flights from Colorado to Islip with flexible booking policies on momondo?

momondo does allow users to show only those flights to Islip from Colorado which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Colorado to Islip?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Islip from Colorado.

I’m not ready to book a flight from Colorado to Islip right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Colorado to Islip now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Islip and let you know when they change.

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